Fluid pressure dispensing machine



May 21, 1935. J. l. GANTZ 2,002,175

Y FLUID PRESSURE DISPENSING MACHINE Filed June 8, 1934 Patented Mey 21, 1935 lzi'rsla'rOFFICEA y FLUID PRESSURE msPENsnvG MACHINE Jaek I. camz, Los Angeles, oeuf. Application June 8, 1934, Serial No. 729,599

` Y f f 78 Claims. My invention relates to'dispensing machines 'in which itis possible; to Vdispense cleanly and eiciently` a predetermined quantity or amount o f any preferred material, such, for example, asV

equipped withvsuitablemeans for dispensing atwill a predetermined amount or quantity of the material to be dispensed, Aeiicientlyand cleanly. "It is also an object of my invention to provide a, novel form 4of measuring device including a suitable casing provided with a measuring member equipped with a measuring chamber, which chamber may be provided with a suitable wiper forfacilitating thedischarge of the material in said chamber to be dispensed, pluralmeanasuch as rack and pinion mechanism being provided foractuating said measuring member and said Wiper, and, if desired,` any preferred means, such as a cam being alsoprovided in said casing as a knock out means for the measured material, any preferred .means beingl also providedV for actuatingfsaid'pluralmeans. s.

'.If desired,'also, my novel form of measuring `device may be equipped with a suitable vacuum breaking means to insure that the measuredl quantity or amount of dispensed material may be Vefficiently and'cleanly. dispensed. I I v The above, and further objects and advantages of my invention, as will hereinafter more fully ap- 40 peanl-attain by the construction described in the'specication and illustrated on the drawing,

forming a part of my application. I `Reference is had to the accompanying drawing, in which similar reference characters denote similar parts. In the drawing,

Fig. 1 is a part sectional and part elevational view of my invention, Y* Y y Fig. 2 is a somewhat enlarged cross-sectional Y view, taken on the line 2-2, Fig. 1.,

A 3 is a similar view, taken on Fig. 2, but illustrating the dispensing or measuring member in a different positionV than that dis- Iclosedin Fig. 2, y -l;ig.A 4 is a similar Fig'. 2,

I view, teken en the une 4 4,

Fig, 5 is a still further enlargedcross-sectional View, taken on the line 5 5, Fig. 3, and

Fig. 6 is a fragmentary, cross-sectional detail view of a modified form of my invention.

Describing my invention more in detail, the reff 5 `erence numeral 2 indicates generally the dispensing machine, whichnmay include a suitable power Vcylinder 4 in which is positioned the pistoni, which piston may be operated in any preferred Way by a suitable iiuid, but preferably by Water, 10 which may be that under'pressure, such, for example, as the city Water supply mains conveyed to the cylinder 4 by the pipe 8to the cylinder head I0, associated in any preferred way A.with said cylinder,` as by the nut and bolt assembly I2.

Preferably positioned above lthe powercylinder 4, although this is not essential, is a material container I4, adapted to house they material to be dispensed, which material may belice cream. The container I4 may be of any preferred type and 20 construction, but is preferably provided with a material discharge outlet means I6 having an outlet pipe I8 leading to the material inlet 20 of the measuring device 22, presently to be more particularly described. 25

If preferred, the material discharge or outlet means I6 may be detachably associated with the container I4 by any preferred means, such as the link and wing nut assembly 24. A

As seen in Fig. 1, which discloses the machine 30 for dispensing ice cream, the 'container I4 may have associated therewith any preferred form of refrigerating means 26, which may take the form of an ice Ajacket or box, preferably open at the top so that said container I4 and its top or dis- 35 charge I6 may be surrounded by the refrigerating material, such as ice, or any other inpractice suggest'ed or desired. Y

Y 'Ihe refrigerating means 26 may be equipped with a suitableA bottom 28, torwhich, if desired, 40 ,may be detachably securedV the container I4 by any suitable means, such as the hook and pin assembly 30, and said bottom may also be detachably associated with the cylinder head 32 of the power cylinder 4 in any preferred Way, as by thenut and 45 bolt assembly 34. Of course, any other means for holding the various parts of my dispensing machine in secured anddetachable relation may be used-and stillremain Within the province of my invention." A' Y I To discharge the ice cream or the material to to be dispensed to themeasuring device 22 under pressure, any suitable means may be provided, in the present instance a, suitable piston 36 adapted toreciprocatein,thecontaner I4, said piston being preferably connected by the connecting rod 38 to the piston 5 in the power cylinder 4, so that as power is applied to said piston 6, as by the pressure of the water entering said cylinder 4 below said piston 6, pressure will be applied to the material above the piston 36 so that said material Will be supplied to the inlet 2d of the measuring device 22 under pressure. I have found in practice that the pressure of the water in the city mains is ample to produce this result.

Themeasuring device 22 may. vcomprise asuitable casing 4B, constructed of any desired material, and of any preferred contour, said casing being equipped With a cover 42, preferably detachably associated with the casing 49 byany suitable means, such as the screw bolts 44, so that said casing may be opened and anyI needed repairs So also said casing may be equipped With f made. end closures 46, also detachably associated with the casing by screw bolts 44.

Thecasingllfmayalso be provided with a bottom k48, out out as-at 550 to provide an inlet means for the 4material conveyed thereto from thecontainerili, as previously described, and also With a discharge outlet 52 for discharging from themeasuring `device 22 the Yr'n'easured material, said discharge opening or outlet being preferably of larger size than the inlet D so .that the measured vmaterial may be discharged cleanly.. I "Operablewithin the casing 45 is a suitable measuring member 54, provided with at least one material cavity or chamber 55, which chamber or cavityV is adapted' alternatively to align with the inletopening 50 or the discharge outlet 52,7Fi'gs. 2 and 4 depicting said cavity or chamn berl in alignment with said inlet,'to receive the material iromnthe discharge -I6 ofthe container 14,01* as in Figs. Brand 5 With the discharge out- `let 52. The `chamber or'rcavity 55 may be provided in theV `member54 in any way in practice preferred.

`VASofthatan accurate amount of material be forced into/the chamber *$56, a suitable cut off 58V may beprovidedwhich cut off is also prou vided with an inlet opening 6Fl,` adapted to align 'with the opening `r5ft when thematerial from the container i4 is vforced into vthe chamber 56.

`iis'will'be'apparenathe-member 54 and the cut vorf 60, Yto function properly;`should not only b-esimultaneou'sly movable, but` movable in opposite Idirectionsso that as'soon as the'chamber 'y Y is cned witnthe 'material *to be dispensed, it

- through vthe discharge :should be cut volf cleanly and eliiciently. Any suitable means for accomplishing this may be Provided. l Y

For this purpose I may provide the cut off 60 'with Ia rack loari2; secured to said cut 01T or Vassociated therewith in any way in practice preferredj` the teeth of which are adapted to mesh with' those of a pinion A54(1Fig. 3), the teeth of said 'pinion Aalso 'meshingvvith a rack vbar 66, associated vas preferred With the extension 68 of thegmemb'er 54,V thus forming ja double rack and pinion to provide for asimultaneous and opposite moyenienjt of the cut yoli" 58 and the member 54.

vr'.toidischarge the measured material cleanly and e'iliciently fromthe lchamber or cavity 56, Imay provide va `v'viper 1t, which Wiper has a curved portion l2, curved complementary to the curvature of the Vchamber 56 so that said Wiper Will-'detach vthe lmaterial from said chamber so 1 itjmay be cleanly and eicently discharged l A. s opening 52. The Wiper-70 -is preferably rotated,` and said rotation is accomplished by any preferred means, such as the pinion 'I4 in mesh with a rack 16, associated in any preferred Way with an extension 'i8 on the cover or closure 42. Hence, as the member 54 is moved, the pinion 'i4 thereon is rotated along the rack bar 16, and, of course, the wiper 1E! is rotated therewith, said pinion 14, the pinion 64, member 54 and cut oi 58 all forming a plural means which are simultaneously operated.

Since the material is forced into the chamber or cavity 56 under pressure, it is desirable that any vacuum conditions within the casing 4D be broken. Further, it is desirable that the removal of the dispensed material be eiciently accomplished. VTo this end, the wiper 'l0 may be provided with a stem 8!) (Fig. 5, more particularly), which stem has a head 82 adapted to ride over a stationary cam 84, so said head, stem and knock out portion 85 may be depressed to knock out the material within the chamber 5S, a spring 88s, abutting the inner end of the head 82 and the inner end of the sleeve 5B of the pinion 74, opposing said knock out movement, which spring, after the material has been discharged, and the device 54 has been returned from its extrme amplitude of movement (Figs. 3 and 5), and said head 82 removed from the cam 84, said head, stem and knock out portion 86 will assume their original position, depicted in Figs. 2 and 4.

As seen more particularly in Fig. 5, a suitable clearance space 92 is provided about the stem 89, so that as soon as 'the piston 8S is depressed, any vacuum conditions within the casing 4t will be broken, and the material easily and cleanly dispensed through the discharge opening 52.

Any suitable means for operating the pinion 54 may be provided, Figs. l, 2, and 3 showing a handy means in the shaft 94 and suitable crank handle 96, a simple turning movement of the handle 96 accomplishing the result, the rotary or oscillating movement of said handle being communicated to the pinion 64 by means of the shaft 94.

f` Should it be desired to dispense a larger or smaller amount or vquantity of the material in ,the container I4, a set of measuring members Aany preferred lever or arm mechanism 94', connec'ted to the member 54, 4and operable by a suitable Yknob 9S', being .used to move `said member 54, Vthe remaining parts of the mechanism being identical as those in the other form of my invention.

In -accordance with the provisions of thepatent statutes, I have described the principle of operation of my invention together with the mas chine and apparatus which I' now consider to represent the best embodiment thereof; but I desire to have it understood that the apparatus and machine is only illustrative, and thatthe invention can be carried out by other means and Ways.

I claim as my invention: i'

1. In a dispensing machine, a mea'suringdevice comprising a casing provided with a 'material inlet with means for supplying material reciprocate in said casing, cut-off means mountedA `to control said material inlet, and an operating means for moving said measuring member and said cut-off means in opposite directions simultaneously to move the cavity of the measuring member from alignment with the inlet to alignment with the discharge opening and simultaneously to move the cut-off means inward closing lthe material inlet.

2. In a dispensing machine, a measuring device comprising a casing provided with a material inlet and with a material discharge opening, a measuring member provided with a material measuring cavity mounted in said casing to reciprocate for bringing said cavity alternately into alignment with said inlet opening and with said discharge opening, a cut-off device and means for simultaneously reciprocating said cut-01T device and said measuring member in opposite directions whereby the cut-off device closes the inlet opening as said cavityl moves from alignment therewith and uncovering the dischargeV opening as said cavity comes into registration therewith.

3. A dispensing device as set forth in claim 2 having a knock-out plunger mounted to operate in said cavity with means for operating the same by the movement of said measuring member, said measuring member and said knock-out plunger providing an air passage around the plunger when the plunger is in its operative position to relieve vacuum in said cavity;

4. In a dispensing machine a measuring device comprising a casing equipped with an inlet connection and a discharge opening, with means for supplying material to said inlet connection,

a measuringmember mounted to reciprocate in said casing having a measuring cavity alternately aligned with said inlet connection and said discharge opening as the measuring member is reciprocated, cut-off means mounted to reciprocate independently of said measuring 'member and a rack and 'pinion device'arranged to simultaneously actuate said measuring member and said cut-off means in opposite direc'- tions.

5. A measuring device as set forth in claim 4 having a knock-out device mounted in said measuring member arranged in cooperation therewith to relieve vacuum in said cavity as it is recipro'cated to Voperative position and means for reciprocating said knock-out device by the movement of said measuring member.

6. In a dispensing machine, a mounting equipped with an inlet connection having means for supplying material thereto, a measuring member tted to reciprocate onsaid mounting having a measuring cavity adapted to be alined with the said inlet connection, a rotary clearer `and a reciprocating plunger both mounted in said measuring member tooperate in said cavity and means for operating the same by the movement of said measuring member.

7. A measuring device as set forth in claim 6V wherein the rotary clearer and the reciprocating plunger are concentrically mounted and the reciprocating plunger has a rebated portion to relieve vacuuml in said cavity as it is moving to operative position. Y

8. A measuring device as set forth in claim 6, having a rack and pinion device to rotate said clearer and a cam device to operate said plunger as the measuring member is reciprocated.

JACK I. GANTZ. 

